The artwork shows all sorts of lines that are accented well on the dress
Zebra lines used in a prom dress

The windowpane jacket accents the windowpane furniture
The rainbow-colored horizontal stripes of the dress curve a little at the top just like a rainbow does

The dress is called a "Bandage" dress which reminds me of a mummy wrap because of the thick horizontal lines
Lines from the England flag are also used in dresses
Maze lines are used in the dress

http://rickoshea.files.wordpress.com/2008/11/reignac-sur-indre-maze.jpg
Zig-Zag lines incorporated in the dress and the chair
Lines from the beach ball were inspired for the apparel outfit
Lines within the butterfly wings